US Bridges

FM 509 over Ocelot Crossing

Good

Cameron County, Texas · 0.50 MI S of FM 675 · Structure no. 210310106501005

Built
1996
29 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Concrete
Length
40 ft
1 main span
Daily traffic
4,746
2024 count
Owner
State
State Highway Agency

About this bridge

FM 509 over Ocelot Crossing is a concrete stringer/multi-beam or girder carrying FM 509 over Ocelot Crossing in Cameron County, Texas. It was built in 1996, so it is 29 years old, younger than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 4,746 vehicles a day, roughly 17% of them trucks, projected to reach 8,280 by 2035. The structure is 40 ft (12.2 m) long and 46 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesFM 509
CrossesOcelot Crossing
Location0.50 MI S of FM 675
RouteState Highway 509
CountyCameron County
StateTexas
Coordinates26.08545, -97.72056
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length40 ft (12.2 m)
Longest span40 ft (12.2 m)
Deck width46 ft (14 m)
Roadway width43 ft (13.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,746 (2024)
Projected traffic8,280 by 2035
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesOther
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was FM 509 over Ocelot Crossing built?

It was built in 1996, making it 29 years old in 2025.

What condition is FM 509 over Ocelot Crossing in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2023.

How much traffic does FM 509 over Ocelot Crossing carry?

About 4,746 vehicles per day (2024 count), of which roughly 17% are trucks.

How long is FM 509 over Ocelot Crossing?

The structure is 40 ft (12.2 m) long with a longest span of 40 ft (12.2 m) and a deck 46 ft wide.

Who owns FM 509 over Ocelot Crossing?

It is owned by the State Highway Agency.